remove unused library

src/CodeInterpreter.hh

 /*
- * Copyright (C) 2007-2017 Dynare Team
+ * Copyright (C) 2007-2018 Dynare Team
  *
  * This file is part of Dynare.
  *
@@ -39,8 +39,6 @@
 # endif
 #endif
 
-#include <cstdint>
-
 #define NEAR_ZERO (1e-12)
 
 using namespace std;